{
  "status": "completed",
  "applicable_count": 1,
  "completed_count": 1,
  "failed_count": 0,
  "schema_version": 1,
  "config_hash": "c55c2f78e54bc607",
  "data": {
    "overlays": {
      "L03B02": {
        "bg_id": "L03B02",
        "fp_id": "fp_l03_rooftop_exterior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9
        ],
        "ignore_numbered_elements": [
          10,
          11,
          12,
          13,
          14,
          15
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "roof deck exterior zone",
            "category": "area",
            "position_hint": "large open rooftop surface surrounding the rooftop room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop room footprint",
            "category": "area",
            "position_hint": "compact enclosed room block set slightly north and east of center on the roof",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "stairhead landing threshold",
            "category": "area",
            "position_hint": "southwest side of roof deck, connected to the route up from lower floors",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "iron entrance door",
            "category": "opening",
            "position_hint": "south-facing wall of rooftop room, opening from roof deck into the room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "small exterior window",
            "category": "opening",
            "position_hint": "east wall of rooftop room facing the open roof deck and parapet",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "cylindrical water tank",
            "category": "prop",
            "position_hint": "northwest utility corner of the roof deck near the parapet",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "clothesline with two posts",
            "category": "prop",
            "position_hint": "north roof deck span between water tank area and opposite parapet side",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "low parapet wall perimeter",
            "category": "area",
            "position_hint": "continuous low wall around the outer roof edge",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "low outdoor drying platform",
            "category": "furniture",
            "position_hint": "open roof deck near the rooftop room door, offset toward the center of the roof",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 10,
            "label": "intruder shadow at iron door",
            "category": "prop",
            "position_hint": "outside number 4 on the roof deck side, tied to the night intrusion moment only",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "advertising flyer in door gap",
            "category": "prop",
            "position_hint": "at the latch edge of number 4, tied to the night unlocking action only",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "assault silhouette in window",
            "category": "prop",
            "position_hint": "within or behind number 5, visible only during the night assault moment",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "yellow interior glow at window",
            "category": "prop",
            "position_hint": "at number 5, visible only in the dawn exterior moment",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "black cat crossing roof edge",
            "category": "prop",
            "position_hint": "near number 8 along the exterior roof edge, tied to the dawn cat-passing moment only",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "dried herb leaves scattered by wind",
            "category": "prop",
            "position_hint": "around number 9 and across the deck toward number 4, tied to the night rooftop wind moment only",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          8
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 8]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L03B03": {
        "bg_id": "L03B03",
        "fp_id": "fp_l03_rooftop_exterior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          15
        ],
        "ignore_numbered_elements": [
          13,
          14
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "roof deck exterior zone",
            "category": "area",
            "position_hint": "large open rooftop surface surrounding the rooftop room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop room footprint",
            "category": "area",
            "position_hint": "compact enclosed room block set slightly north and east of center on the roof",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "stairhead landing threshold",
            "category": "area",
            "position_hint": "southwest side of roof deck, connected to the route up from lower floors",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "iron entrance door",
            "category": "opening",
            "position_hint": "south-facing wall of rooftop room, opening from roof deck into the room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "small exterior window",
            "category": "opening",
            "position_hint": "east wall of rooftop room facing the open roof deck and parapet",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "cylindrical water tank",
            "category": "prop",
            "position_hint": "northwest utility corner of the roof deck near the parapet",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "clothesline with two posts",
            "category": "prop",
            "position_hint": "north roof deck span between water tank area and opposite parapet side",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "low parapet wall perimeter",
            "category": "area",
            "position_hint": "continuous low wall around the outer roof edge",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "low outdoor drying platform",
            "category": "furniture",
            "position_hint": "open roof deck near the rooftop room door, offset toward the center of the roof",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 10,
            "label": "intruder shadow at iron door",
            "category": "prop",
            "position_hint": "outside number 4 on the roof deck side, tied to the night intrusion moment only",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "advertising flyer in door gap",
            "category": "prop",
            "position_hint": "at the latch edge of number 4, tied to the night unlocking action only",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "assault silhouette in window",
            "category": "prop",
            "position_hint": "within or behind number 5, visible only during the night assault moment",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "dried herb leaves scattered by wind",
            "category": "prop",
            "position_hint": "around number 9 and across the deck toward number 4, tied to the night rooftop wind moment only",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 13,
            "label": "yellow interior glow at window",
            "category": "prop",
            "position_hint": "at number 5, visible only in the dawn exterior moment",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "black cat crossing roof edge",
            "category": "prop",
            "position_hint": "near number 8 along the exterior roof edge, tied to the dawn cat-passing moment only",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          8
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 8]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L03B01": {
        "bg_id": "L03B01",
        "fp_id": "fp_l03_rooftop_exterior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          13,
          14
        ],
        "ignore_numbered_elements": [
          10,
          11,
          12,
          15
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "roof deck exterior zone",
            "category": "area",
            "position_hint": "large open rooftop surface surrounding the rooftop room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop room footprint",
            "category": "area",
            "position_hint": "compact enclosed room block set slightly north and east of center on the roof",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "stairhead landing threshold",
            "category": "area",
            "position_hint": "southwest side of roof deck, connected to the route up from lower floors",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "iron entrance door",
            "category": "opening",
            "position_hint": "south-facing wall of rooftop room, opening from roof deck into the room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "small exterior window",
            "category": "opening",
            "position_hint": "east wall of rooftop room facing the open roof deck and parapet",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "cylindrical water tank",
            "category": "prop",
            "position_hint": "northwest utility corner of the roof deck near the parapet",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "clothesline with two posts",
            "category": "prop",
            "position_hint": "north roof deck span between water tank area and opposite parapet side",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "low parapet wall perimeter",
            "category": "area",
            "position_hint": "continuous low wall around the outer roof edge",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "low outdoor drying platform",
            "category": "furniture",
            "position_hint": "open roof deck near the rooftop room door, offset toward the center of the roof",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "yellow interior glow at window",
            "category": "prop",
            "position_hint": "at number 5, visible only in the dawn exterior moment",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "black cat crossing roof edge",
            "category": "prop",
            "position_hint": "near number 8 along the exterior roof edge, tied to the dawn cat-passing moment only",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 10,
            "label": "intruder shadow at iron door",
            "category": "prop",
            "position_hint": "outside number 4 on the roof deck side, tied to the night intrusion moment only",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "advertising flyer in door gap",
            "category": "prop",
            "position_hint": "at the latch edge of number 4, tied to the night unlocking action only",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "assault silhouette in window",
            "category": "prop",
            "position_hint": "within or behind number 5, visible only during the night assault moment",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "dried herb leaves scattered by wind",
            "category": "prop",
            "position_hint": "around number 9 and across the deck toward number 4, tied to the night rooftop wind moment only",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          8
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 8]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B01": {
        "bg_id": "L04B01",
        "fp_id": "fp_l04_interior_main",
        "use_numbered_elements": [
          1,
          5,
          6,
          7,
          8,
          9,
          10,
          12,
          13,
          14,
          15,
          24,
          25
        ],
        "ignore_numbered_elements": [
          26,
          27,
          28,
          29,
          31,
          32,
          33,
          34,
          35,
          36,
          37
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "Shared living kitchen zone",
            "category": "area",
            "position_hint": "central and south-central open room connecting entry, kitchen, table, television, and bedroom doors",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "Entry threshold zone",
            "category": "area",
            "position_hint": "south edge of apartment, immediately inside the exterior metal entry door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "Exterior metal entry door",
            "category": "opening",
            "position_hint": "south wall at the entry threshold, drawn with an inward swing arc",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Small living room window",
            "category": "opening",
            "position_hint": "west exterior wall of the shared living kitchen zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "Main bedroom door",
            "category": "opening",
            "position_hint": "between shared living kitchen zone and main bedroom, on the northwestern partition",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Smaller bedroom door",
            "category": "opening",
            "position_hint": "between shared living kitchen zone and smaller bedroom, on the northeastern partition",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Bathroom door",
            "category": "opening",
            "position_hint": "between entry or living area and bathroom, near the southeast corner",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Kitchen sink and counter",
            "category": "prop",
            "position_hint": "west or southwest wall of the shared living kitchen zone below the living room window area",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Compact cooktop fixture",
            "category": "prop",
            "position_hint": "on the kitchen counter run beside the sink",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Dining table and two chairs",
            "category": "furniture",
            "position_hint": "center of the shared living kitchen zone, between kitchen counter and television",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Television on low stand",
            "category": "furniture",
            "position_hint": "east wall of the shared living kitchen zone facing the dining table",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 24,
            "label": "Two tea cups and herb drink",
            "category": "prop",
            "position_hint": "on or near the dining table in the shared living kitchen zone, with drink preparation connected to the sink and counter",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "Small circular wrist mark on seated person",
            "category": "prop",
            "position_hint": "near the dining table in the shared living kitchen zone, visible only when the person is framed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 26,
            "label": "Bloodstains and footprint trail",
            "category": "prop",
            "position_hint": "across the smaller bedroom floor, leading from the doorway toward the curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Body slumped beside curtain",
            "category": "prop",
            "position_hint": "on the floor beside number 23 in the smaller bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Crumpled photograph in hand",
            "category": "prop",
            "position_hint": "held by the body near number 27 in the smaller bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "Red circle above bed wall",
            "category": "prop",
            "position_hint": "on the smaller bedroom wall above number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Red circle reflected in bathroom mirror",
            "category": "prop",
            "position_hint": "within the reflective surface of number 20, not as a permanent wall object",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Distorted family photo on table",
            "category": "prop",
            "position_hint": "on number 14 in the shared living kitchen zone, seen as a subjective image on a photo surface",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "Red circle with pinned blood-stained photo",
            "category": "prop",
            "position_hint": "on the smaller bedroom wall above or near number 18, centered with a pinned photo",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Ransacked goods and overturned chairs",
            "category": "prop",
            "position_hint": "scattered through the shared living kitchen zone around number 14 and into the smaller bedroom approach",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "Living room window left open",
            "category": "opening",
            "position_hint": "at number 7 on the west wall of the shared living kitchen zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "Loose rattling entry door state",
            "category": "opening",
            "position_hint": "at number 6 on the south entry wall",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "Shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside the smaller bedroom near number 19 or near the floor beside the bed",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B06": {
        "bg_id": "L04B06",
        "fp_id": "fp_l04_interior_main",
        "use_numbered_elements": [
          3,
          9,
          11,
          18,
          19,
          23,
          26,
          27,
          28
        ],
        "ignore_numbered_elements": [
          24,
          25,
          29,
          31,
          32,
          33,
          34,
          35,
          36,
          37
        ],
        "base_markers_to_reference": [
          {
            "number": 3,
            "label": "Smaller bedroom zone",
            "category": "area",
            "position_hint": "northeast private room off the shared living kitchen zone, with bed, wardrobe, window, and curtain",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Smaller bedroom door",
            "category": "opening",
            "position_hint": "between shared living kitchen zone and smaller bedroom, on the northeastern partition",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "Smaller bedroom window",
            "category": "opening",
            "position_hint": "exterior wall of the smaller bedroom near the curtain position",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "Smaller bedroom bed",
            "category": "furniture",
            "position_hint": "inside the smaller bedroom, placed along the south or east wall with wall space above it",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "Smaller bedroom wardrobe and shelf",
            "category": "furniture",
            "position_hint": "inside the smaller bedroom near the door or side wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "Curtain at smaller bedroom window",
            "category": "furniture",
            "position_hint": "hanging at the smaller bedroom window, adjacent to number 11",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 26,
            "label": "Bloodstains and footprint trail",
            "category": "prop",
            "position_hint": "across the smaller bedroom floor, leading from the doorway toward the curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Body slumped beside curtain",
            "category": "prop",
            "position_hint": "on the floor beside number 23 in the smaller bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Crumpled photograph in hand",
            "category": "prop",
            "position_hint": "held by the body near number 27 in the smaller bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 24,
            "label": "Two tea cups and herb drink",
            "category": "prop",
            "position_hint": "on or near the dining table in the shared living kitchen zone, with drink preparation connected to the sink and counter",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "Small circular wrist mark on seated person",
            "category": "prop",
            "position_hint": "near the dining table in the shared living kitchen zone, visible only when the person is framed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "Red circle above bed wall",
            "category": "prop",
            "position_hint": "on the smaller bedroom wall above number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Red circle reflected in bathroom mirror",
            "category": "prop",
            "position_hint": "within the reflective surface of number 20, not as a permanent wall object",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Distorted family photo on table",
            "category": "prop",
            "position_hint": "on number 14 in the shared living kitchen zone, seen as a subjective image on a photo surface",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "Red circle with pinned blood-stained photo",
            "category": "prop",
            "position_hint": "on the smaller bedroom wall above or near number 18, centered with a pinned photo",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Ransacked goods and overturned chairs",
            "category": "prop",
            "position_hint": "scattered through the shared living kitchen zone around number 14 and into the smaller bedroom approach",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "Living room window left open",
            "category": "opening",
            "position_hint": "at number 7 on the west wall of the shared living kitchen zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "Loose rattling entry door state",
            "category": "opening",
            "position_hint": "at number 6 on the south entry wall",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "Shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside the smaller bedroom near number 19 or near the floor beside the bed",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          3
        ],
        "dominant_target_unit_marker_number": 3,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L04B08": {
        "bg_id": "L04B08",
        "fp_id": "fp_l04_interior_main",
        "use_numbered_elements": [
          3,
          9,
          11,
          18,
          19,
          23,
          29
        ],
        "ignore_numbered_elements": [
          24,
          25,
          26,
          27,
          28,
          31,
          32,
          33,
          34,
          35,
          36,
          37
        ],
        "base_markers_to_reference": [
          {
            "number": 3,
            "label": "Smaller bedroom zone",
            "category": "area",
            "position_hint": "northeast private room off the shared living kitchen zone, with bed, wardrobe, window, and curtain",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Smaller bedroom door",
            "category": "opening",
            "position_hint": "between shared living kitchen zone and smaller bedroom, on the northeastern partition",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "Smaller bedroom window",
            "category": "opening",
            "position_hint": "exterior wall of the smaller bedroom near the curtain position",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "Smaller bedroom bed",
            "category": "furniture",
            "position_hint": "inside the smaller bedroom, placed along the south or east wall with wall space above it",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "Smaller bedroom wardrobe and shelf",
            "category": "furniture",
            "position_hint": "inside the smaller bedroom near the door or side wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "Curtain at smaller bedroom window",
            "category": "furniture",
            "position_hint": "hanging at the smaller bedroom window, adjacent to number 11",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 29,
            "label": "Red circle above bed wall",
            "category": "prop",
            "position_hint": "on the smaller bedroom wall above number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 24,
            "label": "Two tea cups and herb drink",
            "category": "prop",
            "position_hint": "on or near the dining table in the shared living kitchen zone, with drink preparation connected to the sink and counter",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "Small circular wrist mark on seated person",
            "category": "prop",
            "position_hint": "near the dining table in the shared living kitchen zone, visible only when the person is framed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Bloodstains and footprint trail",
            "category": "prop",
            "position_hint": "across the smaller bedroom floor, leading from the doorway toward the curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Body slumped beside curtain",
            "category": "prop",
            "position_hint": "on the floor beside number 23 in the smaller bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Crumpled photograph in hand",
            "category": "prop",
            "position_hint": "held by the body near number 27 in the smaller bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Red circle reflected in bathroom mirror",
            "category": "prop",
            "position_hint": "within the reflective surface of number 20, not as a permanent wall object",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Distorted family photo on table",
            "category": "prop",
            "position_hint": "on number 14 in the shared living kitchen zone, seen as a subjective image on a photo surface",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "Red circle with pinned blood-stained photo",
            "category": "prop",
            "position_hint": "on the smaller bedroom wall above or near number 18, centered with a pinned photo",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Ransacked goods and overturned chairs",
            "category": "prop",
            "position_hint": "scattered through the shared living kitchen zone around number 14 and into the smaller bedroom approach",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "Living room window left open",
            "category": "opening",
            "position_hint": "at number 7 on the west wall of the shared living kitchen zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "Loose rattling entry door state",
            "category": "opening",
            "position_hint": "at number 6 on the south entry wall",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "Shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside the smaller bedroom near number 19 or near the floor beside the bed",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          3
        ],
        "dominant_target_unit_marker_number": 3,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L04B07": {
        "bg_id": "L04B07",
        "fp_id": "fp_l04_interior_main",
        "use_numbered_elements": [
          1,
          3,
          5,
          6,
          7,
          9,
          11,
          14,
          15,
          18,
          19,
          23,
          37
        ],
        "ignore_numbered_elements": [
          24,
          25,
          26,
          27,
          28,
          29,
          31,
          32,
          33,
          34,
          35,
          36
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "Shared living kitchen zone",
            "category": "area",
            "position_hint": "central and south-central open room connecting entry, kitchen, table, television, and bedroom doors",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "Smaller bedroom zone",
            "category": "area",
            "position_hint": "northeast private room off the shared living kitchen zone, with bed, wardrobe, window, and curtain",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "Entry threshold zone",
            "category": "area",
            "position_hint": "south edge of apartment, immediately inside the exterior metal entry door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "Exterior metal entry door",
            "category": "opening",
            "position_hint": "south wall at the entry threshold, drawn with an inward swing arc",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Small living room window",
            "category": "opening",
            "position_hint": "west exterior wall of the shared living kitchen zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Smaller bedroom door",
            "category": "opening",
            "position_hint": "between shared living kitchen zone and smaller bedroom, on the northeastern partition",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "Smaller bedroom window",
            "category": "opening",
            "position_hint": "exterior wall of the smaller bedroom near the curtain position",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Dining table and two chairs",
            "category": "furniture",
            "position_hint": "center of the shared living kitchen zone, between kitchen counter and television",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Television on low stand",
            "category": "furniture",
            "position_hint": "east wall of the shared living kitchen zone facing the dining table",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "Smaller bedroom bed",
            "category": "furniture",
            "position_hint": "inside the smaller bedroom, placed along the south or east wall with wall space above it",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "Smaller bedroom wardrobe and shelf",
            "category": "furniture",
            "position_hint": "inside the smaller bedroom near the door or side wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "Curtain at smaller bedroom window",
            "category": "furniture",
            "position_hint": "hanging at the smaller bedroom window, adjacent to number 11",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 37,
            "label": "Shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside the smaller bedroom near number 19 or near the floor beside the bed",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 24,
            "label": "Two tea cups and herb drink",
            "category": "prop",
            "position_hint": "on or near the dining table in the shared living kitchen zone, with drink preparation connected to the sink and counter",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "Small circular wrist mark on seated person",
            "category": "prop",
            "position_hint": "near the dining table in the shared living kitchen zone, visible only when the person is framed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Bloodstains and footprint trail",
            "category": "prop",
            "position_hint": "across the smaller bedroom floor, leading from the doorway toward the curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Body slumped beside curtain",
            "category": "prop",
            "position_hint": "on the floor beside number 23 in the smaller bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Crumpled photograph in hand",
            "category": "prop",
            "position_hint": "held by the body near number 27 in the smaller bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "Red circle above bed wall",
            "category": "prop",
            "position_hint": "on the smaller bedroom wall above number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Red circle reflected in bathroom mirror",
            "category": "prop",
            "position_hint": "within the reflective surface of number 20, not as a permanent wall object",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Distorted family photo on table",
            "category": "prop",
            "position_hint": "on number 14 in the shared living kitchen zone, seen as a subjective image on a photo surface",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "Red circle with pinned blood-stained photo",
            "category": "prop",
            "position_hint": "on the smaller bedroom wall above or near number 18, centered with a pinned photo",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Ransacked goods and overturned chairs",
            "category": "prop",
            "position_hint": "scattered through the shared living kitchen zone around number 14 and into the smaller bedroom approach",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "Living room window left open",
            "category": "opening",
            "position_hint": "at number 7 on the west wall of the shared living kitchen zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "Loose rattling entry door state",
            "category": "opening",
            "position_hint": "at number 6 on the south entry wall",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          3,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 3, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B04": {
        "bg_id": "L04B04",
        "fp_id": "fp_l04_interior_main",
        "use_numbered_elements": [
          2,
          3,
          8,
          9,
          11,
          16,
          18,
          19,
          23
        ],
        "ignore_numbered_elements": [
          24,
          25,
          26,
          27,
          28,
          29,
          31,
          32,
          33,
          34,
          35,
          36,
          37
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "Main bedroom zone",
            "category": "area",
            "position_hint": "northwest private room off the shared living kitchen zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "Smaller bedroom zone",
            "category": "area",
            "position_hint": "northeast private room off the shared living kitchen zone, with bed, wardrobe, window, and curtain",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "Main bedroom door",
            "category": "opening",
            "position_hint": "between shared living kitchen zone and main bedroom, on the northwestern partition",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Smaller bedroom door",
            "category": "opening",
            "position_hint": "between shared living kitchen zone and smaller bedroom, on the northeastern partition",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "Smaller bedroom window",
            "category": "opening",
            "position_hint": "exterior wall of the smaller bedroom near the curtain position",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Main bedroom bed",
            "category": "furniture",
            "position_hint": "against the west or north wall inside the main bedroom",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "Smaller bedroom bed",
            "category": "furniture",
            "position_hint": "inside the smaller bedroom, placed along the south or east wall with wall space above it",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "Smaller bedroom wardrobe and shelf",
            "category": "furniture",
            "position_hint": "inside the smaller bedroom near the door or side wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "Curtain at smaller bedroom window",
            "category": "furniture",
            "position_hint": "hanging at the smaller bedroom window, adjacent to number 11",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 24,
            "label": "Two tea cups and herb drink",
            "category": "prop",
            "position_hint": "on or near the dining table in the shared living kitchen zone, with drink preparation connected to the sink and counter",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "Small circular wrist mark on seated person",
            "category": "prop",
            "position_hint": "near the dining table in the shared living kitchen zone, visible only when the person is framed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Bloodstains and footprint trail",
            "category": "prop",
            "position_hint": "across the smaller bedroom floor, leading from the doorway toward the curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Body slumped beside curtain",
            "category": "prop",
            "position_hint": "on the floor beside number 23 in the smaller bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Crumpled photograph in hand",
            "category": "prop",
            "position_hint": "held by the body near number 27 in the smaller bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "Red circle above bed wall",
            "category": "prop",
            "position_hint": "on the smaller bedroom wall above number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Red circle reflected in bathroom mirror",
            "category": "prop",
            "position_hint": "within the reflective surface of number 20, not as a permanent wall object",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Distorted family photo on table",
            "category": "prop",
            "position_hint": "on number 14 in the shared living kitchen zone, seen as a subjective image on a photo surface",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "Red circle with pinned blood-stained photo",
            "category": "prop",
            "position_hint": "on the smaller bedroom wall above or near number 18, centered with a pinned photo",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Ransacked goods and overturned chairs",
            "category": "prop",
            "position_hint": "scattered through the shared living kitchen zone around number 14 and into the smaller bedroom approach",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "Living room window left open",
            "category": "opening",
            "position_hint": "at number 7 on the west wall of the shared living kitchen zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "Loose rattling entry door state",
            "category": "opening",
            "position_hint": "at number 6 on the south entry wall",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "Shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside the smaller bedroom near number 19 or near the floor beside the bed",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B05": {
        "bg_id": "L04B05",
        "fp_id": "fp_l04_interior_main",
        "use_numbered_elements": [
          1,
          4,
          7,
          10,
          12,
          14,
          20,
          21,
          22,
          31,
          32
        ],
        "ignore_numbered_elements": [
          24,
          25,
          26,
          27,
          28,
          29,
          33,
          34,
          35,
          36,
          37
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "Shared living kitchen zone",
            "category": "area",
            "position_hint": "central and south-central open room connecting entry, kitchen, table, television, and bedroom doors",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "Bathroom zone",
            "category": "area",
            "position_hint": "southeast service room near the entry threshold",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Small living room window",
            "category": "opening",
            "position_hint": "west exterior wall of the shared living kitchen zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Bathroom door",
            "category": "opening",
            "position_hint": "between entry or living area and bathroom, near the southeast corner",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Kitchen sink and counter",
            "category": "prop",
            "position_hint": "west or southwest wall of the shared living kitchen zone below the living room window area",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Dining table and two chairs",
            "category": "furniture",
            "position_hint": "center of the shared living kitchen zone, between kitchen counter and television",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "Bathroom sink and mirror",
            "category": "prop",
            "position_hint": "inside the bathroom on the wall facing the doorway or side wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "Toilet",
            "category": "prop",
            "position_hint": "inside the bathroom near the rear corner",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "Shower drain wet area",
            "category": "prop",
            "position_hint": "inside the bathroom at the far end from the door",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 31,
            "label": "Red circle reflected in bathroom mirror",
            "category": "prop",
            "position_hint": "within the reflective surface of number 20, not as a permanent wall object",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Distorted family photo on table",
            "category": "prop",
            "position_hint": "on number 14 in the shared living kitchen zone, seen as a subjective image on a photo surface",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 24,
            "label": "Two tea cups and herb drink",
            "category": "prop",
            "position_hint": "on or near the dining table in the shared living kitchen zone, with drink preparation connected to the sink and counter",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "Small circular wrist mark on seated person",
            "category": "prop",
            "position_hint": "near the dining table in the shared living kitchen zone, visible only when the person is framed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Bloodstains and footprint trail",
            "category": "prop",
            "position_hint": "across the smaller bedroom floor, leading from the doorway toward the curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Body slumped beside curtain",
            "category": "prop",
            "position_hint": "on the floor beside number 23 in the smaller bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Crumpled photograph in hand",
            "category": "prop",
            "position_hint": "held by the body near number 27 in the smaller bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "Red circle above bed wall",
            "category": "prop",
            "position_hint": "on the smaller bedroom wall above number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "Red circle with pinned blood-stained photo",
            "category": "prop",
            "position_hint": "on the smaller bedroom wall above or near number 18, centered with a pinned photo",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Ransacked goods and overturned chairs",
            "category": "prop",
            "position_hint": "scattered through the shared living kitchen zone around number 14 and into the smaller bedroom approach",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "Living room window left open",
            "category": "opening",
            "position_hint": "at number 7 on the west wall of the shared living kitchen zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "Loose rattling entry door state",
            "category": "opening",
            "position_hint": "at number 6 on the south entry wall",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "Shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside the smaller bedroom near number 19 or near the floor beside the bed",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B02": {
        "bg_id": "L04B02",
        "fp_id": "fp_l04_interior_main",
        "use_numbered_elements": [
          3,
          9,
          11,
          18,
          19,
          23,
          33
        ],
        "ignore_numbered_elements": [
          24,
          25,
          26,
          27,
          28,
          29,
          31,
          32,
          34,
          35,
          36,
          37
        ],
        "base_markers_to_reference": [
          {
            "number": 3,
            "label": "Smaller bedroom zone",
            "category": "area",
            "position_hint": "northeast private room off the shared living kitchen zone, with bed, wardrobe, window, and curtain",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Smaller bedroom door",
            "category": "opening",
            "position_hint": "between shared living kitchen zone and smaller bedroom, on the northeastern partition",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "Smaller bedroom window",
            "category": "opening",
            "position_hint": "exterior wall of the smaller bedroom near the curtain position",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "Smaller bedroom bed",
            "category": "furniture",
            "position_hint": "inside the smaller bedroom, placed along the south or east wall with wall space above it",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "Smaller bedroom wardrobe and shelf",
            "category": "furniture",
            "position_hint": "inside the smaller bedroom near the door or side wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "Curtain at smaller bedroom window",
            "category": "furniture",
            "position_hint": "hanging at the smaller bedroom window, adjacent to number 11",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 33,
            "label": "Red circle with pinned blood-stained photo",
            "category": "prop",
            "position_hint": "on the smaller bedroom wall above or near number 18, centered with a pinned photo",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 24,
            "label": "Two tea cups and herb drink",
            "category": "prop",
            "position_hint": "on or near the dining table in the shared living kitchen zone, with drink preparation connected to the sink and counter",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "Small circular wrist mark on seated person",
            "category": "prop",
            "position_hint": "near the dining table in the shared living kitchen zone, visible only when the person is framed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Bloodstains and footprint trail",
            "category": "prop",
            "position_hint": "across the smaller bedroom floor, leading from the doorway toward the curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Body slumped beside curtain",
            "category": "prop",
            "position_hint": "on the floor beside number 23 in the smaller bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Crumpled photograph in hand",
            "category": "prop",
            "position_hint": "held by the body near number 27 in the smaller bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "Red circle above bed wall",
            "category": "prop",
            "position_hint": "on the smaller bedroom wall above number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Red circle reflected in bathroom mirror",
            "category": "prop",
            "position_hint": "within the reflective surface of number 20, not as a permanent wall object",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Distorted family photo on table",
            "category": "prop",
            "position_hint": "on number 14 in the shared living kitchen zone, seen as a subjective image on a photo surface",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Ransacked goods and overturned chairs",
            "category": "prop",
            "position_hint": "scattered through the shared living kitchen zone around number 14 and into the smaller bedroom approach",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "Living room window left open",
            "category": "opening",
            "position_hint": "at number 7 on the west wall of the shared living kitchen zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "Loose rattling entry door state",
            "category": "opening",
            "position_hint": "at number 6 on the south entry wall",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "Shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside the smaller bedroom near number 19 or near the floor beside the bed",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          3
        ],
        "dominant_target_unit_marker_number": 3,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L04B03": {
        "bg_id": "L04B03",
        "fp_id": "fp_l04_interior_main",
        "use_numbered_elements": [
          1,
          3,
          5,
          6,
          7,
          9,
          11,
          12,
          13,
          14,
          15,
          18,
          19,
          23,
          34,
          35,
          36
        ],
        "ignore_numbered_elements": [
          24,
          25,
          26,
          27,
          28,
          29,
          31,
          32,
          33,
          37
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "Shared living kitchen zone",
            "category": "area",
            "position_hint": "central and south-central open room connecting entry, kitchen, table, television, and bedroom doors",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "Smaller bedroom zone",
            "category": "area",
            "position_hint": "northeast private room off the shared living kitchen zone, with bed, wardrobe, window, and curtain",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "Entry threshold zone",
            "category": "area",
            "position_hint": "south edge of apartment, immediately inside the exterior metal entry door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "Exterior metal entry door",
            "category": "opening",
            "position_hint": "south wall at the entry threshold, drawn with an inward swing arc",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Small living room window",
            "category": "opening",
            "position_hint": "west exterior wall of the shared living kitchen zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Smaller bedroom door",
            "category": "opening",
            "position_hint": "between shared living kitchen zone and smaller bedroom, on the northeastern partition",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "Smaller bedroom window",
            "category": "opening",
            "position_hint": "exterior wall of the smaller bedroom near the curtain position",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Kitchen sink and counter",
            "category": "prop",
            "position_hint": "west or southwest wall of the shared living kitchen zone below the living room window area",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Compact cooktop fixture",
            "category": "prop",
            "position_hint": "on the kitchen counter run beside the sink",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Dining table and two chairs",
            "category": "furniture",
            "position_hint": "center of the shared living kitchen zone, between kitchen counter and television",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Television on low stand",
            "category": "furniture",
            "position_hint": "east wall of the shared living kitchen zone facing the dining table",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "Smaller bedroom bed",
            "category": "furniture",
            "position_hint": "inside the smaller bedroom, placed along the south or east wall with wall space above it",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "Smaller bedroom wardrobe and shelf",
            "category": "furniture",
            "position_hint": "inside the smaller bedroom near the door or side wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "Curtain at smaller bedroom window",
            "category": "furniture",
            "position_hint": "hanging at the smaller bedroom window, adjacent to number 11",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 34,
            "label": "Ransacked goods and overturned chairs",
            "category": "prop",
            "position_hint": "scattered through the shared living kitchen zone around number 14 and into the smaller bedroom approach",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "Living room window left open",
            "category": "opening",
            "position_hint": "at number 7 on the west wall of the shared living kitchen zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "Loose rattling entry door state",
            "category": "opening",
            "position_hint": "at number 6 on the south entry wall",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 24,
            "label": "Two tea cups and herb drink",
            "category": "prop",
            "position_hint": "on or near the dining table in the shared living kitchen zone, with drink preparation connected to the sink and counter",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "Small circular wrist mark on seated person",
            "category": "prop",
            "position_hint": "near the dining table in the shared living kitchen zone, visible only when the person is framed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Bloodstains and footprint trail",
            "category": "prop",
            "position_hint": "across the smaller bedroom floor, leading from the doorway toward the curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Body slumped beside curtain",
            "category": "prop",
            "position_hint": "on the floor beside number 23 in the smaller bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Crumpled photograph in hand",
            "category": "prop",
            "position_hint": "held by the body near number 27 in the smaller bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "Red circle above bed wall",
            "category": "prop",
            "position_hint": "on the smaller bedroom wall above number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Red circle reflected in bathroom mirror",
            "category": "prop",
            "position_hint": "within the reflective surface of number 20, not as a permanent wall object",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Distorted family photo on table",
            "category": "prop",
            "position_hint": "on number 14 in the shared living kitchen zone, seen as a subjective image on a photo surface",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "Red circle with pinned blood-stained photo",
            "category": "prop",
            "position_hint": "on the smaller bedroom wall above or near number 18, centered with a pinned photo",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "Shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside the smaller bedroom near number 19 or near the floor beside the bed",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          3,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 3, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B02": {
        "bg_id": "L05B02",
        "fp_id": "fp_l05_rooftop_threshold",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "rooftop approach surface",
            "category": "area",
            "position_hint": "central open roof surface connecting stair access to the entry threshold",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "iron-door threshold zone",
            "category": "area",
            "position_hint": "small rectangular landing immediately outside the rooftop unit entry door on the south-facing unit wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "rooftop unit wall mass",
            "category": "area",
            "position_hint": "upper-right portion of plan, showing only the exterior edge of the rooftop unit bordering the threshold",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "stair access enclosure",
            "category": "area",
            "position_hint": "lower-left corner, roof stair head and landing where the approach begins",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "iron entry door",
            "category": "opening",
            "position_hint": "south-facing wall of the rooftop unit, centered on the threshold zone, shown with a simple door swing symbol",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "small unit window",
            "category": "opening",
            "position_hint": "front wall of the rooftop unit near the entry door, drawn as double parallel window lines in the wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "low parapet boundary",
            "category": "area",
            "position_hint": "continuous perimeter edge around the rooftop slab",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "rooftop water tank",
            "category": "prop",
            "position_hint": "upper-left utility corner of the rooftop approach surface",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "fixed clothesline",
            "category": "prop",
            "position_hint": "spanning the upper-left to mid-rooftop utility area, drawn as two posts with a straight line",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "low drying platform",
            "category": "furniture",
            "position_hint": "left-center rooftop area near the clothesline and water tank",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "roof drain",
            "category": "prop",
            "position_hint": "lower-right portion of the rooftop slab near the parapet",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "raised door sill",
            "category": "prop",
            "position_hint": "thin fixed sill strip directly below the iron entry door at the threshold",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "half-open dark interior gap",
            "category": "prop",
            "position_hint": "inside the iron entry doorway beyond number 5, visible only as the night-state opening cue",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "person frozen at threshold",
            "category": "prop",
            "position_hint": "on the exterior threshold just outside number 5, facing into the dark gap",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          7
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 7]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B01": {
        "bg_id": "L05B01",
        "fp_id": "fp_l05_yard_exterior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared paved courtyard",
            "category": "area",
            "position_hint": "center of villa yard, between alley gate and stair base",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "narrow alley gate",
            "category": "opening",
            "position_hint": "south edge of yard, opening from alley into courtyard",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "villa building footprint",
            "category": "area",
            "position_hint": "north and east side boundary of the yard, enclosing the exterior stair side",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "exterior stair flight upward",
            "category": "area",
            "position_hint": "east side of yard, running north-south beside building wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "stair-base landing",
            "category": "area",
            "position_hint": "foot of exterior stairs, northeast corner of courtyard",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "recessed bicycle nook",
            "category": "area",
            "position_hint": "rear shadowed corner of yard, west of stair-base landing",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "wall-mounted utility meters",
            "category": "prop",
            "position_hint": "building wall beside stair base, near exterior stair flight",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "ground-floor entry door",
            "category": "opening",
            "position_hint": "building facade facing courtyard, west of stair flight",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "curbside pull-up strip",
            "category": "area",
            "position_hint": "outside the alley gate along the south edge of the plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 10,
            "label": "loosely parked bicycle",
            "category": "prop",
            "position_hint": "inside recessed bicycle nook, angled as if left in a hurry",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "arriving police vehicle",
            "category": "prop",
            "position_hint": "curbside pull-up strip outside alley gate",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "red siren wash",
            "category": "prop",
            "position_hint": "across alley gate, courtyard paving, and lower stair-base landing",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          3,
          4,
          5,
          6,
          9
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 3, 4, 5, 6, 9]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L08B01": {
        "bg_id": "L08B01",
        "fp_id": "fp_l08_market_exterior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "market sales floor footprint",
            "category": "area",
            "position_hint": "north half of plan, behind the storefront facade",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "recessed storefront threshold",
            "category": "area",
            "position_hint": "south edge of market footprint, centered at the entrance recess",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "sliding glass entrance",
            "category": "opening",
            "position_hint": "center of south storefront wall, opening from threshold to sales floor",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "display window strip",
            "category": "opening",
            "position_hint": "south storefront wall, to the left of the entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "sidewalk call area",
            "category": "area",
            "position_hint": "in front of the storefront, slightly right of the entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "bicycle parking rack",
            "category": "prop",
            "position_hint": "sidewalk edge near the storefront, left of the entrance approach",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "exterior CCTV camera",
            "category": "prop",
            "position_hint": "mounted on facade above and right of the entrance, overlooking the approach",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "main sign band",
            "category": "prop",
            "position_hint": "continuous narrow rectangle along the storefront facade above the entrance and window line",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "narrow alley roadway",
            "category": "area",
            "position_hint": "south half of plan, running left to right parallel to the storefront",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "curbside taxi lay-by zone",
            "category": "area",
            "position_hint": "along the far curb of the roadway, opposite the storefront",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "street food stall row",
            "category": "prop",
            "position_hint": "along one side of the alley near the taxi lay-by, opposite the main storefront",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "CCTV approach path",
            "category": "area",
            "position_hint": "short rectangular walking path from sidewalk call area toward the sliding entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "temporarily parked bicycle",
            "category": "prop",
            "position_hint": "leaning or locked at the bicycle rack near number 6",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "phone-call standing position",
            "category": "prop",
            "position_hint": "within the sidewalk call area near number 5, just outside the exit path",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "temporary taxis in lay-by",
            "category": "prop",
            "position_hint": "inside the curbside taxi lay-by zone near number 10",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "temporary pedestrian and vendor bustle",
            "category": "prop",
            "position_hint": "around the stall row and sidewalk edge near numbers 5 and 11",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          5,
          9,
          10,
          12
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 5, 9, 10, 12]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L09B01": {
        "bg_id": "L09B01",
        "fp_id": "fp_l09_store_interior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "customer sales floor shared zone",
            "category": "area",
            "position_hint": "large central area containing the main supermarket aisles",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "front threshold zone",
            "category": "area",
            "position_hint": "south center inside the main entrance vestibule",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "checkout service zone",
            "category": "area",
            "position_hint": "front right area beside the entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "rear utility and stock zone",
            "category": "area",
            "position_hint": "north band behind the sales floor and aisles",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "main glass sliding entrance",
            "category": "opening",
            "position_hint": "south wall center, opening from street into threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "front display windows",
            "category": "opening",
            "position_hint": "south wall flanking the main entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "staff stockroom swing door",
            "category": "opening",
            "position_hint": "north wall right side, connecting sales floor to rear utility zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "side service exit door",
            "category": "opening",
            "position_hint": "east wall near rear utility zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "checkout counter row",
            "category": "furniture",
            "position_hint": "front right, between threshold zone and aisle field",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "left tall aisle shelving run",
            "category": "furniture",
            "position_hint": "left side of central sales floor, north-south orientation",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "center tall aisle shelving run",
            "category": "furniture",
            "position_hint": "center of sales floor, north-south orientation",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "right tall aisle shelving run",
            "category": "furniture",
            "position_hint": "right side of sales floor, north-south orientation near checkout service zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "front low produce island",
            "category": "furniture",
            "position_hint": "front left sales floor near threshold zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "ceiling CCTV dome",
            "category": "prop",
            "position_hint": "southwest front ceiling corner aimed toward entrance and checkout sightline",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "staff circulation lane",
            "category": "area",
            "position_hint": "clear lane along east side from checkout toward rear stock door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "CCTV sightline path",
            "category": "prop",
            "position_hint": "thin dashed diagonal line from CCTV dome toward entrance and checkout approach",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          15
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 15]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L10B01": {
        "bg_id": "L10B01",
        "fp_id": "fp_l10_admin_office",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "main review room",
            "category": "area",
            "position_hint": "central room area, shared review zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "entrance threshold zone",
            "category": "area",
            "position_hint": "west side of room near staff corridor entry",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "hinged entrance door",
            "category": "opening",
            "position_hint": "west wall, opening inward from staff corridor",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "CCTV workstation desk",
            "category": "furniture",
            "position_hint": "north wall, long desk facing south into the room",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "CCTV monitor bank",
            "category": "prop",
            "position_hint": "on and above number 4 along the north wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "security staff chair",
            "category": "furniture",
            "position_hint": "immediately south of number 4, tucked at the workstation",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "left review chair",
            "category": "furniture",
            "position_hint": "center-left of room, facing number 5",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "right review chair",
            "category": "furniture",
            "position_hint": "center-right of room, facing number 5",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "small evidence review table",
            "category": "furniture",
            "position_hint": "between number 7 and number 8, slightly south of the workstation",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "filing cabinet",
            "category": "furniture",
            "position_hint": "east wall, upper corner of storage/utility zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "security equipment rack",
            "category": "prop",
            "position_hint": "east wall, lower corner near cabling and DVR storage",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "small interior window",
            "category": "opening",
            "position_hint": "south wall, narrow high window or transom toward store/corridor side",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "wall notice board",
            "category": "prop",
            "position_hint": "west interior wall north of the entrance threshold",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 14,
            "label": "unusually dark CCTV playback",
            "category": "prop",
            "position_hint": "overlay only on number 5 monitor screens during the review moment; not drawn on the base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L12B03": {
        "bg_id": "L12B03",
        "fp_id": "fp_police_office_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          12,
          14
        ],
        "ignore_numbered_elements": [
          15,
          16
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared office area",
            "category": "area",
            "position_hint": "central open floor area of the single-room office",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "threshold zone",
            "category": "area",
            "position_hint": "southwest corner just inside the main entry",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "detective work zone",
            "category": "area",
            "position_hint": "east half of the office containing main work desks",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "main entry door",
            "category": "opening",
            "position_hint": "southwest wall, opening inward from corridor into threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "north wall window",
            "category": "opening",
            "position_hint": "north wall above the desk area, drawn as a double-line window symbol",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "duty desk",
            "category": "furniture",
            "position_hint": "northeast side of the room, angled toward the entry and shared office area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "desktop monitor",
            "category": "prop",
            "position_hint": "on the duty desk, facing toward the main office interior",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "secondary detective desk",
            "category": "furniture",
            "position_hint": "east-center desk position adjacent to the duty desk cluster",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "primary investigator desk",
            "category": "furniture",
            "position_hint": "southeast side of the office, facing inward toward the shared area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "desk chair",
            "category": "furniture",
            "position_hint": "chair tucked at the primary investigator desk, on the inner side of the desk",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "file cabinets",
            "category": "furniture",
            "position_hint": "northwest wall storage strip, rectangular cabinet blocks against the wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "fluorescent strip fixtures",
            "category": "prop",
            "position_hint": "ceiling fixture positions indicated as simple long rectangles centered over the office plan",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 15,
            "label": "scattered enlarged case photos",
            "category": "prop",
            "position_hint": "on top of the primary investigator desk; overlay only, not drawn on the base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "phone tracking result on monitor",
            "category": "prop",
            "position_hint": "on the desktop monitor at the duty desk; overlay only, not drawn on the base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L12B02": {
        "bg_id": "L12B02",
        "fp_id": "fp_police_office_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared office area",
            "category": "area",
            "position_hint": "central open floor area of the single-room office",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "threshold zone",
            "category": "area",
            "position_hint": "southwest corner just inside the main entry",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "detective work zone",
            "category": "area",
            "position_hint": "east half of the office containing main work desks",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "main entry door",
            "category": "opening",
            "position_hint": "southwest wall, opening inward from corridor into threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "north wall window",
            "category": "opening",
            "position_hint": "north wall above the desk area, drawn as a double-line window symbol",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "duty desk",
            "category": "furniture",
            "position_hint": "northeast side of the room, angled toward the entry and shared office area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "desktop monitor",
            "category": "prop",
            "position_hint": "on the duty desk, facing toward the main office interior",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "secondary detective desk",
            "category": "furniture",
            "position_hint": "east-center desk position adjacent to the duty desk cluster",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "primary investigator desk",
            "category": "furniture",
            "position_hint": "southeast side of the office, facing inward toward the shared area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "desk chair",
            "category": "furniture",
            "position_hint": "chair tucked at the primary investigator desk, on the inner side of the desk",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "evidence-photo work table",
            "category": "furniture",
            "position_hint": "west wall service area, a narrow table or board surface for reviewing printed case images",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "file cabinets",
            "category": "furniture",
            "position_hint": "northwest wall storage strip, rectangular cabinet blocks against the wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "coffee station",
            "category": "prop",
            "position_hint": "south wall near the threshold but outside the door swing, small counter with coffee machine symbol",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "fluorescent strip fixtures",
            "category": "prop",
            "position_hint": "ceiling fixture positions indicated as simple long rectangles centered over the office plan",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 15,
            "label": "scattered enlarged case photos",
            "category": "prop",
            "position_hint": "on top of the primary investigator desk; overlay only, not drawn on the base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "phone tracking result on monitor",
            "category": "prop",
            "position_hint": "on the desktop monitor at the duty desk; overlay only, not drawn on the base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L16B02": {
        "bg_id": "L16B02",
        "fp_id": "fp_l16_boat_deck_exterior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open working deck",
            "category": "area",
            "position_hint": "central and aft main deck area, largest shared zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "bow utility foredeck",
            "category": "area",
            "position_hint": "north tapered bow area ahead of the wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "wheelhouse footprint",
            "category": "area",
            "position_hint": "forward deck, slightly starboard of center, compact cabin block",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "wheelhouse aft door",
            "category": "opening",
            "position_hint": "south face of wheelhouse opening onto the working deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "wheelhouse side sliding window",
            "category": "opening",
            "position_hint": "starboard wall of wheelhouse facing the side passage",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "low perimeter rail",
            "category": "prop",
            "position_hint": "continuous outline around port, starboard, bow, and stern edges of boat deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "aft bench and storage locker",
            "category": "furniture",
            "position_hint": "south aft edge of working deck near stern rail",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "rectangular deck hatch",
            "category": "prop",
            "position_hint": "center of open working deck between aft bench and wheelhouse door",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "port side cleat",
            "category": "prop",
            "position_hint": "west port rail near midship",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "starboard side cleat",
            "category": "prop",
            "position_hint": "east starboard rail near midship",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "front windshield windows",
            "category": "opening",
            "position_hint": "north face of wheelhouse looking toward bow",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "narrow side passage",
            "category": "area",
            "position_hint": "starboard side strip between wheelhouse and rail connecting working deck to bow",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "unfolded navigation map",
            "category": "prop",
            "position_hint": "temporary confrontation prop on the open working deck near the seated position, not part of the base plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "printed photograph",
            "category": "prop",
            "position_hint": "temporary confrontation prop held or shown near the unfolded map on the working deck, not part of the base plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          12
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 12]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L17B01": {
        "bg_id": "L17B01",
        "fp_id": "fp_l17_wheelhouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "wheelhouse control area",
            "category": "area",
            "position_hint": "central cramped cabin interior between aft door and forward console",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "aft threshold zone",
            "category": "area",
            "position_hint": "south edge just inside the deck access door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "forward windshield",
            "category": "opening",
            "position_hint": "north wall spanning most of the front of the wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "port sliding window",
            "category": "opening",
            "position_hint": "west wall, forward half beside the helm area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "starboard sliding window",
            "category": "opening",
            "position_hint": "east wall, forward half beside the helm area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "aft deck door",
            "category": "opening",
            "position_hint": "south wall center, hinged door to the open deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "starboard side access opening",
            "category": "opening",
            "position_hint": "east wall, aft half leading to narrow side deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "helm console",
            "category": "prop",
            "position_hint": "north interior wall directly below the windshield",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "steering wheel and throttle",
            "category": "prop",
            "position_hint": "mounted on the helm console slightly starboard of center",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "GPS and fishfinder display",
            "category": "prop",
            "position_hint": "top of helm console near the forward windshield",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "narrow captain stool",
            "category": "furniture",
            "position_hint": "center of wheelhouse floor facing the helm console",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "port bench storage locker",
            "category": "furniture",
            "position_hint": "west wall, aft half of the wheelhouse",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "electrical switch panel",
            "category": "prop",
            "position_hint": "starboard interior wall near the side access opening",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "small overhead storage shelf footprint",
            "category": "prop",
            "position_hint": "front starboard corner above or beside the helm area, represented as a fixed cabinet footprint",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 15,
            "label": "old photograph clue",
            "category": "prop",
            "position_hint": "near the helm console area, treated as a loose transient clue and not drawn on the base plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "blood red circular wall markings",
            "category": "prop",
            "position_hint": "on multiple interior wall surfaces behind and around the helm area, treated as a transient visual overlay and not drawn on the base plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "collapse spot on wheelhouse floor",
            "category": "prop",
            "position_hint": "central floor near the captain stool and helm standing position, treated as a transient scene-state cue and not drawn on the base plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      }
    }
  },
  "step_id": "floor_plan_overlay_payload",
  "run_id": "6b3c7db7-dab6-4cc5-950d-0889aed783fa",
  "resolved_model": "gpt",
  "updated_at": "2026-06-30T23:01:46.501201+00:00",
  "project_config_snapshot": {}
}